diff --git a/Runtime/Component/Main/Axis.cs b/Runtime/Component/Main/Axis.cs
index cee24c64..3ec8ad1a 100644
--- a/Runtime/Component/Main/Axis.cs
+++ b/Runtime/Component/Main/Axis.cs
@@ -587,7 +587,7 @@ namespace XCharts
         /// <returns></returns>
         internal List<string> GetDataList(DataZoom dataZoom)
         {
-            if (dataZoom != null && dataZoom.enable && dataZoom.IsContainsAxisIndex(index))
+            if (dataZoom != null && dataZoom.enable && dataZoom.IsContainsAxis(this))
             {
                 UpdateFilterData(dataZoom);
                 return filterData;
@@ -610,7 +610,7 @@ namespace XCharts
         /// <param name="dataZoom"></param>
         internal void UpdateFilterData(DataZoom dataZoom)
         {
-            if (dataZoom != null && dataZoom.enable && dataZoom.IsContainsAxisIndex(index))
+            if (dataZoom != null && dataZoom.enable && dataZoom.IsContainsAxis(this))
             {
                 var startIndex = (int)((data.Count - 1) * dataZoom.start / 100);
                 var endIndex = (int)((data.Count - 1) * dataZoom.end / 100);
diff --git a/Runtime/Component/Main/DataZoom.cs b/Runtime/Component/Main/DataZoom.cs
index 6aeb8c37..70fc8ff5 100644
--- a/Runtime/Component/Main/DataZoom.cs
+++ b/Runtime/Component/Main/DataZoom.cs
@@ -365,6 +365,14 @@ namespace XCharts
         public bool runtimeCoordinateDrag { get; internal set; }
         public bool runtimeStartDrag { get; internal set; }
         public bool runtimeEndDrag { get; internal set; }
+        /// <summary>
+        /// 运行时实际范围的开始值
+        /// </summary>
+        public float runtimeStartValue { get; internal set; }
+        /// <summary>
+        /// 运行时实际范围的结束值
+        /// </summary>
+        public float runtimeEndValue { get; internal set; }
 
         class AxisIndexValueInfo
         {
@@ -481,9 +489,20 @@ namespace XCharts
             return rect.Contains(pos);
         }
 
-        public bool IsContainsAxisIndex(int index)
+        public bool IsContainsAxis(Axis axis)
         {
-            return xAxisIndexs.Contains(index);// || yAxisIndexs.Contains(index);
+            if (axis is XAxis) return xAxisIndexs.Contains(axis.index);
+            else if (axis is YAxis) return yAxisIndexs.Contains(axis.index);
+            else return false;
+        }
+        public bool IsContainsXAxis(int index)
+        {
+            return xAxisIndexs != null && xAxisIndexs.Contains(index);
+        }
+
+        public bool IsContainsYAxis(int index)
+        {
+            return yAxisIndexs != null && yAxisIndexs.Contains(index);
         }
 
         public Color32 GetFillerColor(Color32 themeColor)
@@ -957,7 +976,7 @@ namespace XCharts
                     dataZoom.SetLabelActive(false);
                 }
             }
-            if (m_CheckDataZoomLabel)
+            if (m_CheckDataZoomLabel && dataZoom.xAxisIndexs.Count > 0)
             {
                 m_CheckDataZoomLabel = false;
                 var xAxis = chart.GetXAxis(dataZoom.xAxisIndexs[0]);
diff --git a/Runtime/Component/Main/Serie.cs b/Runtime/Component/Main/Serie.cs
index 639afc80..e5c049e9 100644
--- a/Runtime/Component/Main/Serie.cs
+++ b/Runtime/Component/Main/Serie.cs
@@ -1577,7 +1577,7 @@ namespace XCharts
         public List<SerieData> GetDataList(DataZoom dataZoom = null)
         {
             if (dataZoom != null && dataZoom.enable
-                && (dataZoom.xAxisIndexs.Contains(xAxisIndex) || dataZoom.yAxisIndexs.Contains(yAxisIndex)))
+                && (dataZoom.IsContainsXAxis(xAxisIndex) || dataZoom.IsContainsYAxis(yAxisIndex)))
             {
                 SerieHelper.UpdateFilterData(this, dataZoom);
                 return m_FilterData;
diff --git a/Runtime/Component/Sub/SerieData.cs b/Runtime/Component/Sub/SerieData.cs
index 4fa2a99d..3f145773 100644
--- a/Runtime/Component/Sub/SerieData.cs
+++ b/Runtime/Component/Sub/SerieData.cs
@@ -241,6 +241,18 @@ namespace XCharts
             else return 0;
         }
 
+        public float GetData(int index, float min, float max)
+        {
+            if (index >= 0 && index < m_Data.Count)
+            {
+                var value = m_Data[index];
+                if (value < min) return min;
+                else if (value > max) return max;
+                else return value;
+            }
+            else return 0;
+        }
+
         public float GetPreviousData(int index, bool inverse = false)
         {
             if (index >= 0 && index < m_PreviousData.Count)
diff --git a/Runtime/Helper/DataZoomHelper.cs b/Runtime/Helper/DataZoomHelper.cs
new file mode 100644
index 00000000..d359bb86
--- /dev/null
+++ b/Runtime/Helper/DataZoomHelper.cs
@@ -0,0 +1,37 @@
+/************************************************/
+/*                                              */
+/*     Copyright (c) 2018 - 2021 monitor1394    */
+/*     https://github.com/monitor1394           */
+/*                                              */
+/************************************************/
+using System.Collections.Generic;
+
+namespace XCharts
+{
+    public static class DataZoomHelper
+    {
+        public static DataZoom GetDataZoom(Serie serie, List<DataZoom> dataZooms)
+        {
+            if(serie == null) return null;
+            foreach (var dataZoom in dataZooms)
+            {
+                if (!dataZoom.enable) continue;
+                if (dataZoom.IsContainsXAxis(serie.xAxisIndex)
+                    || dataZoom.IsContainsYAxis(serie.yAxisIndex))
+                {
+                    return dataZoom;
+                }
+            }
+            return null;
+        }
+
+        public static void UpdateDataZoomRuntimeStartEndValue(DataZoom dataZoom, Serie serie){
+            if(dataZoom == null || serie == null) return;
+            float min = 0;
+            float max = 0;
+            SerieHelper.GetMinMaxData(serie, out min, out max, null);
+            dataZoom.runtimeStartValue = min + (max-min) * dataZoom.start / 100;
+            dataZoom.runtimeEndValue = min +(max-min) * dataZoom.end / 100;
+        }
+    }
+}
\ No newline at end of file
diff --git a/Runtime/Helper/DataZoomHelper.cs.meta b/Runtime/Helper/DataZoomHelper.cs.meta
new file mode 100644
index 00000000..6ec44bf7
--- /dev/null
+++ b/Runtime/Helper/DataZoomHelper.cs.meta
@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 629319d47e0ca4e4dad76864d4e7226b
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 
diff --git a/Runtime/Helper/SerieHelper.cs b/Runtime/Helper/SerieHelper.cs
index 6d34bcf3..7f11c2fb 100644
--- a/Runtime/Helper/SerieHelper.cs
+++ b/Runtime/Helper/SerieHelper.cs
@@ -442,7 +442,7 @@ namespace XCharts
         public static void UpdateFilterData(Serie serie, DataZoom dataZoom)
         {
             if (dataZoom == null || !dataZoom.enable) return;
-            if (dataZoom.xAxisIndexs.Contains(serie.xAxisIndex))
+            if (dataZoom.IsContainsXAxis(serie.xAxisIndex))
             {
                 if (dataZoom.IsXAxisIndexValue(serie.xAxisIndex))
                 {
@@ -455,7 +455,7 @@ namespace XCharts
                     UpdateFilterData_Category(serie, dataZoom);
                 }
             }
-            else if (dataZoom.yAxisIndexs.Contains(serie.yAxisIndex))
+            else if (dataZoom.IsContainsYAxis(serie.yAxisIndex))
             {
                 if (dataZoom.IsYAxisIndexValue(serie.yAxisIndex))
                 {
diff --git a/Runtime/Internal/CoordinateChart.cs b/Runtime/Internal/CoordinateChart.cs
index 3c995bca..d1092321 100644
--- a/Runtime/Internal/CoordinateChart.cs
+++ b/Runtime/Internal/CoordinateChart.cs
@@ -1737,8 +1737,17 @@ namespace XCharts
 
         public Grid GetDataZoomGridOrDefault(DataZoom dataZoom)
         {
-            var xAxis = GetXAxis(dataZoom.xAxisIndexs[0]);
-            Grid grid = GetGrid(xAxis.gridIndex);
+            Grid grid = null;
+            if (dataZoom.xAxisIndexs != null && dataZoom.xAxisIndexs.Count > 0)
+            {
+                var xAxis = GetXAxis(dataZoom.xAxisIndexs[0]);
+                grid = GetGrid(xAxis.gridIndex);
+            }
+            else if (dataZoom.yAxisIndexs != null && dataZoom.yAxisIndexs.Count > 0)
+            {
+                var yAxis = GetYAxis(dataZoom.yAxisIndexs[0]);
+                grid = GetGrid(yAxis.gridIndex);
+            }
             if (grid == null) return m_Grids[0];
             else return grid;
         }